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        • KCI등재

          한국군의 베트남전 ‘작전권' 협상과 한미동맹의 현실

          이동원 ( Dongwon Lee ) 수선사학회 2020 史林 Vol.0 No.71

          The dispatch of ROK troops to the Vietnam War was the first “practical case” of the ROK-U.S. military alliance. The tedious negotiations about the operational control authority were “cleared up” in an ambiguous form after the dispatch of combat troops. The ROK military “declared” that it had obtained independent operational control authority through consultations, but the reality of the actual battle was different. The 2nd ROK Marine Corps Brigade was under operational control by the first U.S. field command. The two countries had an equal alliance in form, but the ROK military was in a difficult situation to survive without U.S. military aid, and even in the Vietnam War, it relied entirely on the U.S. military for the supply of military supplies and allowances. In the end, the ROK independent operational control authority was a difficult one to break away from the framework of the Korea-U.S. military alliance.

        • 다중펄스 로켓모타 적용 격막의 접착 특성 분석

          이동원(Dongwon Lee), 권태하(Taeha Kwon), 이방업(Bangeop Lee), 정규동(Gyoodong Jung) 한국추진공학회 2014 한국추진공학회 학술대회논문집 Vol.2014 No.5

          다중펄스 로켓모타에 적용되는 격막형 펄스분리장치는 2단 펄스모타의 추진제 자연발화 온도를 고려하여 두께 선정을 해야 한다. 이를 위해 격막에 온도센서를 부착 후 지상연소시험을 수행하였으며, 도출된 격막 두께를 반영한 격막 부착기구의 세부 설계를 위해 Peel, Shear, Cubic 시편시험을 수행하였다. 시험 시 격막 부착기구에 적용되는 접착체의 종류, 접착 두께 비율, 운용 온도를 변화하였을 때 어떠한 특성을 나타내는지 확인하였다. The thermal barrier type Pulse Separation Device(PSD) applied at Multi-Pulse Rocket Motor(MPRM) should be considered its thickness for preventing auto-ignition of propellant loaded in 2nd pulse motor. To setting a thickness, static ground tests about MPRM were conducted using temperature sensors attached on PSD. After setting the thickness, specimens(peel, shear, cubic) test was conducted to design detail dimensions and attachment mechanism of PSD. When testing the specimens, characteristic change of attachment mechanism was verified caused by changing adhesive types, thickness ratio and operate temperatures.

        • KCI등재

          상감문학 아함 시의 자연 상징 연구

          이동원(Dongwon Lee) 한국동서비교문학학회 2018 동서 비교문학저널 Vol.0 No.45

          This paper proposes an archetypal criticism on caṅkam literature by considering the cyclic patterns of natural symbols of akam poetry. Caṅkam anthologies are broadly divided into two categories: akam, or interior and puṟam, the exterior. Akam poetry views life from inside the family and describes the love affairs between two main characters; while puṟam poetry views life from outside the family and describes the dynamic scene of war. Akam poetry is synonymous with love poetry in Tamil tradition. Love in all its variety is its theme. The commentators list five types of true love poetry: kuṟiňci, mullai, marutam, neytal, and pālai. These are the names of particular flowers and faunas, and represent different regions or landscapes. Each of five regions or landscapes is a whole repertoire of images, such as bird, beast, water, time, season; further, each of them is associated with an appropriate phases of love between hero and heroine. Natural elements of akam poetry are used to symbolize and evoke a specific feeling. They exhibit the cyclic pattern of archetypal images suggested by Northrop Frye in his book Anatomy of Criticism. Circularity of natural symbols of five-fold akam poetry corresponds with the five phases of love- from the first encounter to the separation of lovers, and then another beginning of love. Archetypal criticism on akam poetry shows the world view of ancient Tamil people and invests caṅkam anthologies with universality and generality.

        • KCI등재
        • KCI등재

          온라인 상품 판매 성과에 영향을 미치는 상품 소개글 효과 측정 기법

          이동원(Dongwon Lee), 박성혁(Sung-Hyuk Park), 문송천(Songchun Moon) 한국지능정보시스템학회 2012 지능정보연구 Vol.18 No.4

          온라인 상에서 판매되는 상품은 매우 다양하지만, 소비자에게 판매 가격을 제시하거나 소개글을 통해서 상품에 대한 구체적인 설명을 제공한다는 점은 모든 상품에 있어서 가장 기본이 되는 공통적인 특징이다. 만약, 상품의 실제 품질이나 가격과는 독립적으로 상품 소개글이 판매에 미치는 영향력을 파악할 수 있다면 어떠한 소개글이 상품의 판매를 촉진하는 측면에서 더 좋은 글인지 분별할 수 있게 된다. 이런 관점에서 본 연구는 상품 소개글과 판매 성과의 관계를 파악하기 위한 목적으로 수행되었으며, 구체적으로는 온라인 시장에서 한글로 작성된 상품 소개글에 쓰인 각각의 표현 별로 소비자가 구매를 결정하는 데에 어떤 영향을 미치는지를 분석하고자 하였다. 한글 형태소 분석기를 사용하여 국내 앱 시장에서 수집된 앱 소개글 및 판매이력 데이터로부터 상품을 설명하는 주요 속성과 그 속성에 대한 평가를 추출하였으며, 추출된 키워드를 입력 변수로 구성한 계량경제학 모형을 구축하였고, 구체적으로 특정 표현들이 판매 성과에 미치는 영향을 구축된 모형을 사용하여 계량적으로 측정하였다. 앱의 카테고리 별로 표현의 종류가 상이하게 나타남이 관찰됨에 따라, 분석은 각 카테고리 별로 수행되었다. 유료 앱과 무료 앱에 대해서 데이터 분석을 수행한 결과, 판매 성과에 영향을 미치는 ‘속성과 평가' 키워드를 그 영향력의 크기 별로 파악할 수 있었으며, 특히 무료 앱의 경우는 무료로 이용할 수 있음에도 불구하고 품질이 좋다는 것을 강조했을 때 판매량을 더 높일 수 있다는 것이 확인되었다. 본 연구는 모바일 앱에 대해 수행되었으나, 온라인에서 거래되는 다양한 상품에 대해서도 소개글이 판매 성과에 미치는 영향을 분석할 수 있는 모형으로 활용될 수 있다. 마지막 장에서는 기업의 마케팅 매니저가 본 연구에서 제시하는 연구 방법론과 분석결과를 활용할 수 있는 방안을 제시하였다. Personalized smart devices such as smartphones and smart pads are widely used. Unlike traditional feature phones, theses smart devices allow users to choose a variety of functions, which support not only daily experiences but also business operations. Actually, there exist a huge number of applications accessible by smart device users in online and mobile application markets. Users can choose apps that fit their own tastes and needs, which is impossible for conventional phone users. With the increase in app demand, the tastes and needs of app users are becoming more diverse. To meet these requirements, numerous apps with diverse functions are being released on the market, which leads to fierce competition. Unlike offline markets, online markets have a limitation in that purchasing decisions should be made without experiencing the items. Therefore, online customers rely more on item-related information that can be seen on the item page in which online markets commonly provide details about each item. Customers can feel confident about the quality of an item through the online information and decide whether to purchase it. The same is true of online app markets. To win the sales competition against other apps that perform similar functions, app developers need to focus on writing app descriptions to attract the attention of customers. If we can measure the effect of app descriptions on sales without regard to the app's price and quality, app descriptions that facilitate the sale of apps can be identified. This study intends to provide such a quantitative result for app developers who want to promote the sales of their apps. For this purpose, we collected app details including the descriptions written in Korean from one of the largest app markets in Korea, and then extracted keywords from the descriptions. Next, the impact of the keywords on sales performance was measured through our econometric model. Through this analysis, we were able to analyze the impact of each keyword itself, apart from that of the design or quality. The keywords, comprised of the attribute and evaluation of each app, are extracted by a morpheme analyzer. Our model with the keywords as its input variables was established to analyze their impact on sales performance. A regression analysis was conducted for each category in which apps are included. This analysis was required because we found the keywords, which are emphasized in app descriptions, different category-by-category. The analysis conducted not only for free apps but also for paid apps showed which keywords have more impact on sales performance for each type of app. In the analysis of paid apps in the education category, keywords such as ‘search +easy' and ‘words+abundant'showed higher effectiveness. In the same category, free apps whose keywords emphasize the quality of apps showed higher sales performance. One interesting fact is that keywords describing not only the app but also the need for the app have asignificant impact. Language learning apps, regardless of whether they are sold free or paid, showed higher sales performance by including the keywords ‘foreign language study+important'. This result shows that motivation for the purchase affected sales. While item reviews are widely researched in online markets, item descriptions are not very actively studied. In the case of the mobile app markets, newly introduced apps may not have many item reviews because of the low quantity sold. In such cases, item descriptions can be regarded more important when customers make a decision about purchasing items. This study is the first trial to quantitatively analyze the relationship between an item description and its impact on sales performance. The results show that our research framework successfully provides a list of the most effective sales key terms with the estimates of their effectiveness. Although this study is performed for a specified type of item (i.e., mobile apps), our model can be applied

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